Molecular formula
C18H18N2O2S
287 compounds have this formula on CompoundList.
- Molar mass
- 326.41g/mol
- Monoisotopic mass
- 326.1089Da
- Atoms
- 41
- Elements
- 5
- Rings plus double bonds
- 11
The formula C18H18N2O2S describes a molecule made of 18 carbon atoms, 18 hydrogen atoms, 2 nitrogen atoms, 2 oxygen atoms and 1 sulfur atom. It is written in Hill notation: carbon first, then hydrogen, then the other elements in alphabetical order. The formula tells you which atoms are present, not how they are connected, which is why several different chemicals can share it.
Elemental composition
- C Carbon × 1866.23%12.011 × 18 = 216.198 g/mol
- H Hydrogen × 185.56%1.008 × 18 = 18.144 g/mol
- N Nitrogen × 28.58%14.007 × 2 = 28.014 g/mol
- O Oxygen × 29.80%15.999 × 2 = 31.998 g/mol
- S Sulfur × 19.82%32.06 × 1 = 32.060 g/mol
Look up another formula
Compounds with the formula C18H18N2O2S
Isomers we list, best known first. Open one to see its structure, properties, safety data and suppliers.
Showing 1 to 100 of 287 compounds
2,4,6-Trimethyl-N-quinolin-3-ylbenzenesulfonamide
CAS 331430-17-2C18H18N2O2S
N-(4-Methylbenzyl)-2-(3-oxo-3,4-dihydro-2H-1,4-benzothiazin-2-yl)acetamide
CAS 860611-81-0C18H18N2O2S
N-(2,4-Dimethylphenyl)-2-(3-oxo-3,4-dihydro-2H-1,4-benzothiazin-2-yl)acetamide
CAS 300559-65-3C18H18N2O2S
1-(2-Benzylsulfanyl-4,5-dihydroimidazol-1-yl)-2-phenoxyethanone
CAS 851864-24-9C18H18N2O2S
![N-[2-(7-Methyl-2-oxo-1H-quinolin-3-yl)ethyl]-2-thiophen-2-ylacetamide chemical structure, C18H18N2O2S, CAS 851404-54-1](/s/ZXKYUSAMQABWHG-UHFFFAOYSA-N.svg)
N-[2-(7-Methyl-2-oxo-1H-quinolin-3-yl)ethyl]-2-thiophen-2-ylacetamide
CAS 851404-54-1C18H18N2O2S
2-(Morpholin-4-yl)-1-(10H-phenothiazin-10-yl)ethanone
CAS 4063-37-0C18H18N2O2S
5-(4-Ethoxyphenyl)-3-(2-methoxyphenyl)-1H-imidazole-2-thione
CAS 688791-29-9C18H18N2O2S
N-(3-Cyano-4,5,6,7-tetrahydro-1-benzothien-2-yl)-2-(2-methylphenoxy)acetamide
CAS 303092-51-5C18H18N2O2S
N-(2-(7,8-Dimethyl-2-oxo-1,2-dihydroquinolin-3-yl)ethyl)thiophene-2-carboxamide
CAS 851407-74-4C18H18N2O2S
![N-(3-Cyano-5,6-dihydro-4H-cyclopenta[b]thiophen-2-yl)-2-(3,4-dimethylphenoxy)acetamide chemical structure, C18H18N2O2S, CAS 326920-74-5](/s/OWOAJQSVWWBCHY-UHFFFAOYSA-N.svg)
N-(3-Cyano-5,6-dihydro-4H-cyclopenta[b]thiophen-2-yl)-2-(3,4-dimethylphenoxy)acetamide
CAS 326920-74-5C18H18N2O2S
N-(2,5-Dimethylphenyl)-2-(3-oxo-3,4-dihydro-2H-1,4-benzothiazin-2-yl)acetamide
CAS 908803-69-0C18H18N2O2S
![3-(4-Ethoxyphenyl)-5,6,7,8-tetrahydro-[1]benzothiolo[2,3-d]pyrimidin-4-one chemical structure, C18H18N2O2S, CAS 374096-98-7](/s/OUJCLJSCPUIUQI-UHFFFAOYSA-N.svg)
3-(4-Ethoxyphenyl)-5,6,7,8-tetrahydro-[1]benzothiolo[2,3-d]pyrimidin-4-one
CAS 374096-98-7C18H18N2O2S
![2-(3,4-Dihydroisoquinolin-2(1H)-yl)-4,7-dimethoxybenzo[d]thiazole chemical structure, C18H18N2O2S, CAS 863001-50-7](/s/CAZGRPZXTKBFEQ-UHFFFAOYSA-N.svg)
2-(3,4-Dihydroisoquinolin-2(1H)-yl)-4,7-dimethoxybenzo[d]thiazole
CAS 863001-50-7C18H18N2O2S
N-(2-(5,8-Dimethyl-2-oxo-1,2-dihydroquinolin-3-yl)ethyl)thiophene-2-carboxamide
CAS 851406-72-9C18H18N2O2S
N-Nitroso-duloxetine
CAS 2680527-91-5C18H18N2O2S
![N-(3-Cyano-5,5-dimethyl-4,7-dihydrothieno[2,3-c]pyran-2-yl)-2-phenylacetamide chemical structure, C18H18N2O2S, CAS 353484-29-4](/s/CZHLXWTUWNFEMU-UHFFFAOYSA-N.svg)
N-(3-Cyano-5,5-dimethyl-4,7-dihydrothieno[2,3-c]pyran-2-yl)-2-phenylacetamide
CAS 353484-29-4C18H18N2O2S
4,5-Bis(4-methoxyphenyl)-N-methyl-1,3-thiazol-2-amine
CAS 796115-98-5C18H18N2O2S
acetic acid chemical structure, C18H18N2O2S, CAS 445266-81-9](/s/AQQRHQRTRXHWHV-UHFFFAOYSA-N.svg)
[(3-Cyano-5-ethyl-4,6-dimethylpyridin-2-yl)sulfanyl](phenyl)acetic acid
CAS 445266-81-9C18H18N2O2S
![N,N-Dimethyl-2-[(3-oxo-2-phenyl-2,3-dihydro-1H-isoindol-1-yl)sulfanyl]acetamide chemical structure, C18H18N2O2S, CAS 866008-79-9](/s/YPJPXWHKQIZRGG-UHFFFAOYSA-N.svg)
N,N-Dimethyl-2-[(3-oxo-2-phenyl-2,3-dihydro-1H-isoindol-1-yl)sulfanyl]acetamide
CAS 866008-79-9C18H18N2O2S
N-(3,4-Dihydro-1(2H)-quinolinylcarbonothioyl)-2-methoxybenzamide
CAS 671795-01-0C18H18N2O2S
2-Methyl-N-(1-methyl-4-oxo-3-thiophen-2-ylquinolin-2-yl)propanamide
CAS 896838-38-3C18H18N2O2S
![3-Methyl-N-[(E)-[4-(thietan-3-yloxy)phenyl]methylideneamino]benzamide chemical structure, C18H18N2O2S, CAS 418803-24-4](/s/YXHHVQXCYGCYAY-VXLYETTFSA-N.svg)
3-Methyl-N-[(E)-[4-(thietan-3-yloxy)phenyl]methylideneamino]benzamide
CAS 418803-24-4C18H18N2O2S
N-(2-Ethylphenyl)-2-(3-oxo-3,4-dihydro-2H-1,4-benzothiazin-2-yl)acetamide
CAS 299954-15-7C18H18N2O2S
N-(1-Methyl-4-oxo-3-(thiophen-2-yl)-1,4-dihydroquinolin-2-yl)butyramide
CAS 883964-97-4C18H18N2O2S
- N-Benzothiazol-2-yl-2-[4-(methylethyl)phenoxy]acetamide307545-04-6C18H18N2O2S
- 1 suppliersClk1-IN-4332939-32-9C18H18N2O2S
- 3-(4-Methoxyphenyl)-2-(propylsulfanyl)-4(3H)-quinazolinone25477-49-0C18H18N2O2S
- 2-Cinnamamido-4,5,6,7-tetrahydrobenzo[b]thiophene-3-carboxamide298193-33-6C18H18N2O2S
- N-(3-Cyano-4,5,6,7-tetrahydro-1-benzothiophen-2-yl)-2-ethoxybenzamide5701-66-6C18H18N2O2S
- (E)-N-(3-(2-Hydroxy-2-phenylethyl)thiazolidin-2-ylidene)benzamide536726-38-2C18H18N2O2S
- JCF-177 free base697758-03-5C18H18N2O2S
- 3-(2-Phenethylsulfanyl-benzoimidazol-1-yl)-propionic acid313958-09-7C18H18N2O2S
- 2-Methyl-3-(3-(methylthio)phenyl)-5,6-dihydro-2H-2,6-methanobenzo[g][1,3,5]oxadiazocin-4(3H)-one687580-79-6C18H18N2O2S
- 2-Cinnamamido-N-methyl-5,6-dihydro-4H-cyclopenta[b]thiophene-3-carboxamide1322239-13-3C18H18N2O2S
- 2-Amino-7-methyl-4-(4-methylsulfanylphenyl)-5-oxo-4,6,7,8-tetrahydrochromene-3-carbonitrile376613-84-2C18H18N2O2S
- Ethyl 6-methyl-4-(1-naphthyl)-2-thioxo-1,2,3,4-tetrahydro-5-pyrimidinecarboxylate5675-17-2C18H18N2O2S
- 1-(2-(Benzylthio)acetyl)indoline-2-carboxamide1101189-21-2C18H18N2O2S
- Ethyl [(1-benzyl-1H-benzimidazol-2-yl)sulfanyl]acetate400742-86-1C18H18N2O2S
- 3-(2-Methoxyphenyl)-2-propylsulfanylquinazolin-4-one25477-48-9C18H18N2O2S
- 1-Cyclohexyl-2-phenyl-1H-thieno[3,2-d]imidazole-5-carboxylic acid874571-86-5C18H18N2O2S
- 9H-Thioxanthene-4-carboxamide, N-(2-(dimethylamino)ethyl)-9-oxo-112022-07-8C18H18N2O2S
- N-(3,4-Dimethylphenyl)-3-(2-oxo-2,3-dihydro-1,3-benzothiazol-3-yl)propanamide852046-18-5C18H18N2O2S
- N-[3-(Methylsulfanyl)phenyl]-5-oxo-1-phenylpyrrolidine-3-carboxamide873562-46-0C18H18N2O2S
- 2-[[(2,5-Dimethoxyphenyl)methylene]amino]-4,5,6,7-tetrahydrobenzo[b]thiophene-3-carbonitrile324776-84-3C18H18N2O2S
- N-(2-Oxo-1,2,3,4-tetrahydroquinolin-6-yl)-3-(phenylthio)propanamide1207023-95-7C18H18N2O2S
- 5-(4-Hydroxy-3,5-dimethylphenyl)-8-thia-4,6-diazatricyclo[7.4.0.0,2,7]trideca-1(9),2(7),5-trien-3-one2196202-92-1C18H18N2O2S
- 3-(4-Methoxyphenyl)-2-methyl-5,6,7,8-tetrahydro-[1]benzothiolo[2,3-d]pyrimidin-4-one35973-88-7C18H18N2O2S
- N-(3-Cyano-6-methyl-4,5,6,7-tetrahydro-1-benzothiophen-2-yl)-3-methoxybenzamide329227-05-6C18H18N2O2S
- N-(2-Ethoxyphenyl)-2-(1H-indol-3-ylsulfanyl)acetamide862825-89-6C18H18N2O2S
- 4-(2-(4-(Ethylthio)phenyl)acetyl)-3,4-dihydroquinoxalin-2(1H)-one952861-59-5C18H18N2O2S
- N-Methyl-1-(5-phenyl-1-(phenylsulfonyl)-1H-pyrrol-3-yl)methanamine881678-78-0C18H18N2O2S
- (E)-N-(5,5-Dimethyl-7-oxo-4,6-dihydro-1,3-benzothiazol-2-yl)-3-phenylprop-2-enamide300849-69-8C18H18N2O2S
- 3-(2-Methoxyphenyl)-2-propan-2-ylsulfanylquinazolin-4-one25477-37-6C18H18N2O2S
- 3-(Phenylsulfonyl)-1-(pyrrolidin-3-yl)-1H-indole651335-54-5C18H18N2O2S
- N-(4-Cyano-3-cyclopropylphenyl)-1-(4-methylphenyl)methanesulfonamide2141961-23-9C18H18N2O2S
- N-[2-(1H-Indol-3-ylsulfanyl)ethyl]-2-phenoxyacetamide687570-17-8C18H18N2O2S
- (Z)-3-(2,3-Dimethoxyphenyl)-2-(4,5,6,7-tetrahydrobenzo[d]thiazol-2-yl)acrylonitrile305853-37-6C18H18N2O2S
- 1-(2-(Ethylthio)benzoyl)indoline-2-carboxamide1103514-01-7C18H18N2O2S
- N-(1-Cyclopropanecarbonyl-2,3-dihydro-1H-indol-6-yl)-2-(thiophen-2-yl)acetamide1058454-29-7C18H18N2O2S
- N-(4,6-Dimethyl-1,3-benzothiazol-2-yl)-4-ethoxybenzamide313252-22-1C18H18N2O2S
- 2-Phenoxy-N-(3,4,7-trimethyl-1,3-benzothiazol-2-ylidene)acetamide1321835-35-1C18H18N2O2S
- 2-(Hydroxymethyl)-N-[2-(4-methylphenyl)ethyl]-1,3-benzothiazole-5-carboxamide895131-40-5C18H18N2O2S
- N-(Benzo[d]thiazol-6-yl)-4-butoxybenzamide899988-56-8C18H18N2O2S
- N-(2-(Cyclopropanecarbonyl)-1,2,3,4-tetrahydroisoquinolin-7-yl)thiophene-2-carboxamide955766-46-8C18H18N2O2S
- 9-Tosyl-2,3,4,9-tetrahydro-1H-pyrido[3,4-b]indole869096-24-2C18H18N2O2S
- N-(3,4-Dimethylphenyl)-2-(3-oxo-3,4-dihydro-2H-1,4-benzothiazin-2-yl)acetamide367908-28-9C18H18N2O2S
- 4-(2-Methoxy-4-(2-propen-1-yl)phenoxy)-5,6-dimethylthieno(2,3-d)pyrimidine315685-02-0C18H18N2O2S
- N-(3-Cyano-5,6,7,8-tetrahydro-4H-cyclohepta[b]thiophen-2-yl)-4-methoxybenzamide332373-83-8C18H18N2O2S
- 2,4,6-Trimethyl-N-(quinolin-8-yl)benzene-1-sulfonamide16082-60-3C18H18N2O2S
- N-(3-Cyano-4,5,6,7-tetrahydro-1-benzothiophen-2-yl)-4-ethoxybenzamide329222-42-6C18H18N2O2S
- N-(2,3-Dimethylphenyl)-2-(3-oxo-3,4-dihydro-2H-1,4-benzothiazin-2-yl)acetamide301683-24-9C18H18N2O2S
- (E)-3-Methoxy-N-(3,4,5-trimethylbenzo[d]thiazol-2(3H)-ylidene)benzamide1005993-44-1C18H18N2O2S
- N-(4-Ethyl-3-methyl-1,3-benzothiazol-2-ylidene)-3-methoxybenzamide1321766-84-0C18H18N2O2S
- (5-Dimethylaminonaphthalene-1-sulfonamido) benzene34532-47-3C18H18N2O2S
- N-(6-Methoxy-1,3-benzothiazol-2-yl)-2-phenylbutanamide333326-23-1C18H18N2O2S
- N-Benzothiazol-2-yl-4-o-tolyloxy-butyramide383896-69-3C18H18N2O2S
- 4,6-Bis(4-methoxyphenyl)-3,4-dihydropyrimidine-2(1H)-thione71834-50-9C18H18N2O2S
- 6-(Benzenesulfonyl)-2,3,4,9-tetrahydro-1H-carbazol-3-amine512204-74-9C18H18N2O2S
- 2,5-Dimethyl-N-(5-(4-methylbenzyl)thiazol-2-yl)furan-3-carboxamide878117-64-7C18H18N2O2S
- 2-{[(E)-(2,4-Dimethoxyphenyl)methylidene]amino}-4,5,6,7-tetrahydro-1-benzothiophene-3-carbonitrile356586-75-9C18H18N2O2S
- N-(2,5-Dimethylphenyl)-3-(2-oxo-1,3-benzothiazol-3(2H)-yl)propanamide852046-17-4C18H18N2O2S
- N-(3,5-Dimethylphenyl)-3-(2-oxo-1,3-benzothiazol-3(2H)-yl)propanamide852046-19-6C18H18N2O2S
- 3-(4-Methylbenzyl)-5-(4-toluidino)-1,3-thiazolidine-2,4-dione496019-71-7C18H18N2O2S
- 2-Methyl-N-(4-(4-propylphenyl)thiazol-2-yl)furan-3-carboxamide869632-12-2C18H18N2O2S
- 3-Benzyl-1-(4-ethoxyphenyl)-2-thioxoimidazolidin-4-one692267-75-7C18H18N2O2S
- N-Benzothiazol-2-yl-4-m-tolyloxy-butyramide432520-75-7C18H18N2O2S
- N-(3,5-Dimethylphenyl)-2-(3-oxo-3,4-dihydro-2H-1,4-benzothiazin-2-yl)acetamide692759-85-6C18H18N2O2S
- N-(4-Ethylphenyl)-2-(3-oxo-3,4-dihydro-2H-1,4-benzothiazin-2-yl)acetamide708295-26-5C18H18N2O2S
- 2-(3-Oxo-3,4-dihydro-2H-1,4-benzothiazin-2-yl)-N-(2-phenylethyl)acetamide522660-81-7C18H18N2O2S
- 5,5-Dimethyl-2-{[(4-phenyl-1,3-thiazol-2-yl)amino]methylidene}cyclohexane-1,3-dione913524-45-5C18H18N2O2S
- 4-(2-Methylsulfanylethyl)-1,2-diphenylpyrazolidine-3,5-dione10561-02-1C18H18N2O2S
- (5,6-Dimethylbenzimidazol-1-yl)-(2-methoxy-4-methylsulfanylphenyl)methanone349576-17-6C18H18N2O2S
- N-(2,4-Dimethylphenyl)-3-(2-oxo-1,3-benzothiazol-3(2H)-yl)propanamide852046-16-3C18H18N2O2S
- N-(3-(Benzo[d]thiazol-2-yl)-4-hydroxyphenyl)pivalamide941911-26-8C18H18N2O2S
- N-(6-Ethoxy-1,3-benzothiazol-2-yl)-3-phenylpropanamide476321-09-2C18H18N2O2S
- 5-(Ethyl(phenyl)amino)-3-(o-tolyl)thiazolidine-2,4-dione1025500-00-8C18H18N2O2S
- N-(2,3-Dimethylphenyl)-3-(2-oxo-1,3-benzothiazol-3-yl)propanamide852046-15-2C18H18N2O2S
- 3-(3-Methoxyphenyl)-6,7,8,9-tetrahydro-3H-cyclohepta[4,5]thieno[2,3-d]pyrimidin-4(5H)-one461448-93-1C18H18N2O2S
- 5-[(2,5-Dimethylphenyl)amino]-3-(3-methylphenyl)-1,3-thiazolidine-2,4-dione477275-65-3C18H18N2O2S
- N-(3-Cyano-5-methyl-4,5,6,7-tetrahydro-1-benzothiophen-2-yl)-4-methoxybenzamide313404-14-7C18H18N2O2S
Frequently asked questions
What is the molar mass of C18H18N2O2S?
The molar mass of C18H18N2O2S is 326.41 g/mol, calculated from standard atomic weights for 18 carbon atoms, 18 hydrogen atoms, 2 nitrogen atoms, 2 oxygen atoms and 1 sulfur atom. The monoisotopic mass is 326.1089 Da.
How many compounds have the formula C18H18N2O2S?
CompoundList lists 287 compounds with the molecular formula C18H18N2O2S, including 2,4,6-Trimethyl-N-quinolin-3-ylbenzenesulfonamide, N-(4-Methylbenzyl)-2-(3-oxo-3,4-dihydro-2H-1,4-benzothiazin-2-yl)acetamide, N-(2,4-Dimethylphenyl)-2-(3-oxo-3,4-dihydro-2H-1,4-benzothiazin-2-yl)acetamide. Compounds that share a formula are isomers. They contain the same atoms arranged differently, so their properties, uses and prices can be very different.
What is the degree of unsaturation of C18H18N2O2S?
C18H18N2O2S has a degree of unsaturation of 11. That is the total number of rings and pi bonds (a double bond counts as one, a triple bond as two) in any structure with this formula.